Newton Running Women's Kismet Running Shoes Mesh Shaft measures approximately Low-Top" from arch 5-lug P.O.P 2 Platform - Beveled and articulated lugs surrounded by static lugs for a more relaxed ride and a broader base of support. Action/Reaction technology in the forefoot and heel - Newton's patented trampoline-like technology that reduces energy loss. Biomechanical Metatarsal Sensor Plate - Provides support in key areas of the foot. Durable s.h.a.r.c (super high abrasion rubber compound) - On the outsole, this adds durability to the shoe. e.m.b (Extended Medial Bridge) - A broader midsole platform offers more stability.